@article{TMF_2016_188_2_a4,
     author = {A. V. Kisselev},
     title = {Approximate formulas for moderately small eikonal amplitudes},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {273--287},
     publisher = {mathdoc},
     volume = {188},
     number = {2},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2016_188_2_a4/}
}